{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "These data indicate that artemisinin may be useful for the prevention of lymph node metastasis by downregulating VEGF - C and reducing tumor lymphangiogenesis ."}
{"Anatomy": ["lymph node", "tumor"]}